12251064915647 has 8 divisors (see below), whose sum is σ = 12971788896816. Its totient is φ = 11530349057152.

The previous prime is 12251064915611. The next prime is 12251064915743. The reversal of 12251064915647 is 74651946015221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12251064915647 - 2¹⁶ = 12251064850111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12251064915247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223588 + ... + 5098950.

It is an arithmetic number, because the mean of its divisors is an integer number (1621473612102).

Almost surely, 2^{12251064915647} is an apocalyptic number.

12251064915647 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12251064915647 is a deficient number, since it is larger than the sum of its proper divisors (720723981169).

12251064915647 is a wasteful number, since it uses less digits than its factorization.

12251064915647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4061337.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 12251064915647 in words is "twelve trillion, two hundred fifty-one billion, sixty-four million, nine hundred fifteen thousand, six hundred forty-seven".